VALLIAMMAI ENGINEERING COLLEGE
SRM Nagar, Kattankulathur – 603 203
DEPARTMENT OF
COMPUTER SCIENCE AND ENGINEERING
QUESTION BANK
I SEMESTER
NE7001 - SENSING TECHNIQUES AND SENSORS
Regulation – 2013
Academic Year 2016 – 17
Prepared by
Ms.Shanthi.S, Assistant Professor/CSE
VALLIAMMAI ENGINEERING COLLEGE SRM Nagar, Kattankulathur – 603 203.
DEPARTMENT OF COMPUTER SCIENCE AND ENGINEERING_
QUESTION BANK
SUBJECT : Ne7001 - SENSING TECHNIQUES AND SENSORS
SEM / YEAR: I sem/I year-M.E
UNIT I - PRINCIPLES OF SENSING
Data Acquisition – sensor characteristics – electric charges, fields, potentials – capacitance –
magnetism – inductance – resistance – piezoelectric – pyroelectric – Hall effect –
thermoelectric effects – sound waves – heat transfer – light – dynamic models of sensors
PART - A
Q.No Questions Competence BT
level 1. Define Sensor and how it is different from transducer
and actuator
actuator.
Remembering BTL1
2. Give some dynamic models of sensors elements.(JUNE
2015)
Understandin
g
BTL2
3. Show and list out the fundamental properties of Heat.
Applying BTL3
4. Explain State Tribo-electric effect.
Analysing BTL4
5. Explain how direct sensor differs with Complex sensor.
Evaluating BTL5
6. Generalize Saturation and Dead band?
Creating BTL6
7. Define Transfer function characteristic in sensor.
Remembering BTL1
8. Describe various classification of sensors.. (JAN 2015)
Understandin
g
BTL2
9. Differentiate Full-scale input is different from Full-scale
output.
Differentiate Full-scale input is different from Full-scale
output.
Analysing BTL4
10. Combine self-induction and induced voltage.
Creating BTL6
11. Write down the Characteristics of sensors(Dec-2016)
Remembering BTL1
12. Describe different types of error characteristics. Understandin
g
BTL2
13. Explain how electricity differs with magnetism.(JAN
2016)
Analysing BTL4
14. What is dielectric constant
Remembering BTL1
15. Give some properties of piezoelectric films. Understandin
g
BTL2
16. Compare and define the types of resistivity.
Evaluating BTL5
17. List out the different types of Magnets. (JAN 2016,Dec-
2016)
Remembering BTL1
18. Examine different characteristics of a Permanent Magnet.
Applying BTL3
19. List out the factors which depends induced voltage. Remembering BTL1
20. Illustrate and list out basic SI units of various Quantities. Applying BTL3
PART - B
Q.No Questions Competence BT
level 1. Describe about different effects in generation of electric
charges. (13)(JAN 2016)
Remembering BTL1
2. Describe in detail about Physical principle of sensing.
(13)
Understandin
g
BTL2
3. (i)Examine Dynamic model of sensor elements. (7)
(ii)Examine Inductance and resistance. (6)
Applying BTL3
4. (i)Explain Petlier effect and Hall Effect. (7)
(ii)Explain about sound waves and sensors
characteristics. (6)
Evaluating BTL5
5. (i)Describe in detail about Magnetism. (7)
(ii)Describe in detail about Inductance. (6)
Remembering BTL1
6. (i)Describe how conductance relates with direct sensor.
(7)
(ii)Give in depth about heat transfer. (6)
Understandin
g
BTL2
7. (i)Explain how Light and Heat relates with Sensors. (7)
(JAN 2016)
(ii)Explain how Sound and Heat relates with Sensors. (6)
(JAN 2016)
Analysing BTL4
8. (i)Describe in detail about Seeback effect. (7)
(ii)List features in Hall effect. (6)
Remembering BTL1
9. Examine how electric charge, field and potential is
related with sensors. (13) (Dec-2016)
Applying BTL3
10. (i)Describe Data Acquisition System in Detail. (7)
(JUNE 2014)
(ii)Describe Dynamic models of sensors. (6)
Remembering BTL1
11. (i)Explain the concept of Piezoelectric effect. (7) (JAN
2016) (Dec-2016)
(ii)Explain the concept of pyroelectric effect. (6) (JAN
2016) (Dec-2016)
Analysing BTL4
12. Create a device with Sound, Light and Heat Sensors. (13)
Creating BTL6
13. (i)Describe how magnetism relates with physical
principles of sensing.(7)
(ii)Describe how resistance relates with physical
principles of sensing. (6)
Understandin
g
BTL2
14. (i)Differentiate solenoid from Toroid. (7)
(ii)Explain about piezoelectric. (6)
Analysing BTL4
UNIT-I(PART-c) (15 marks)
Q.No QUESTION COMPETENCE LEVEL
1. Assess various applications where Data Acquisition Evaluating BTL5
UNIT II - OPTICAL COMPONENTS AND INTERFACE ELECTRONICS
Radiometry – Photometry – mirrors – lenses – fibre optics – concentrators – Interface circuits
–amplifiers – light-to-voltage – excitation circuits – ADC – Digitization – Capacitance-to-
voltage –bridge circuits – data transmission – noise in sensors and circuits – calibration – low
power sensors
PART - A
Q.No Questions BT Level Comp
etence 1. Define Doppler Effect.
Remembering
BTL1
2. Describe how the bridge circuits is in balanced or
unbalanced State and write the significance of bridge
circuit(Dec-2016)
Understanding BTL2
3. Calculate lifetime for a primary cell if the battery is
rated as capacity of 100mAh, the circuit operating
current consumption about 10mA and the circuit works
only 12min every hour.
Applying BTL3
4. Analyse voltage follower.
Analysing BTL4
5. Assess how to determine Bridge insensitivity with
respect to
impedance.
Evaluating
BTL5
6. Create a glass meniscus lens (n = 1.5) has a concave
surface of radius –40 cm and a convex surface whose
radius is +20 cm. What is the focal length of the lens?
Creating BTL6
7. Define reflection and refraction.
Remembering BTL1
8. Give the frequency response of an accelerometer.
Understanding BTL2
9. Differentiate between Primary Cell and Secondary Cell.
Analysing BTL4
System works.
2 Consider a case study on Sensor Characteristics.
(JUNE 2014)
Evaluating
BTL5
3 Analyse how various physical principles are
directly related to sensors. (JAN 2016) Analysing
BTL4
4 List and Explain of applications of various effects
involved in sensing.
Remembering
BTL1
10. Generalize Single and dual fiber optic sensors. (JAN
2015,2016,Dec-2016)
Creating BTL6
11. Define Radiometric and Photometric terminologies.
Remembering BTL1
12. Give several noises in sensors and circuits. (JAN 2016)
Understanding BTL2
13. Explain false positive and false negative detection.
Analysing BTL4
14. Define Fractional binary and Integer binary.
Remembering BTL1
15. Describe seebeck noise.
Understanding BTL2
16. Assess how shot noise differs from Schottky noise.
Evaluating
BTL5
17. List some rules while applying electrostatic shields.
Remembering BTL1
18. Illustrate the circuit diagram for ADC. (JAN 2015)
(JUNE 2014)
Applying BTL3
19. List some practical guidelines to follow magnetic
shielding.
Remembering BTL1
20. Calculate the radius of the curved surface in a plano-
convex lens in order that the focal length be 25 cm.
Applying BTL3
PART - B
1. (i)Describe Dual Slope Conversion. (7)
(ii)Describe Successive Approximation Converter. (6)
Remembering BTL1
2. (i)Describe in detail about the charge to voltage
convertors. (7)
(ii)Describe in detail about current to voltage convertors.
(6)
Understanding BTL2
3. (i)Examine low power sensors. (7)
(ii)Examine ADC and Digitization. (6)
Applying BTL3
4. (i)Explain in detail about the difference of Lenses with
Fresnel lens. (7)(JAN 2016)
(ii)Explain in detail about Mirrors. (6)
Evaluating
BTL5
5. (i)Describe about operation of Op-amp in open loop
conditions in detail.( (7) (JUNE 2015)
(ii)Describe about operation of Op-amp in closed loop
conditions in detail. (6) (JUNE 2015)
Remembering BTL1
6. Differentiate interface circuits and Amplifiers. (13)
Understanding BTL2
7. (i)Explain Modulating Oscillator. (7)
(ii)Explain Switched capacitance converter. (6)
Analysing BTL4
8. Examine Direct Digitization and Processing in necessary
in Sensors. (13)
Remembering BTL1
9. How displacement sensor relates with optical Fiber &
Concentrators. (13)
Applying BTL3
10. (i).Describe Noise in sensors and Circuits. (7) (Dec-
2016)
(ii)Examine about pressure Gradients. (6)
Remembering
BTL1
11. (i)Explain briefly about the V/F converters and its
types. (7)
(ii).Explain briefly about lenses. (6)
Analysing BTL4
12. Develop the term Fibre optics.(13)
Creating BTL6
13. (i)Briefly describe about the principle of instrumentation
amplifier. (7)
(ii)Briefly describe about calibrations. (6)
Understanding BTL2
14. (i)Differentiate radiometry from Photometry and how
windows is different from mirrors. (7) (Dec-2016)
(ii)Point out the characteristics of radiometry and
photometry. (6)
Analysing BTL4
PART - C
1. In what way sensors are affected by various noises?
Remembering
BTL1
2. Analyse the applications of A/D convertors in detail.
Analysing BTL4
3. Illustrate the applications of OP- AMP in detail.
Applying BTL3
4. How optical components are directly related to sensor.
Justify.
Evaluating
BTL5
UNIT III - MOTION RELATED SENSORS
Occupancy and motion detectors: ultrasonic – microwave – capacitive detectors – triboelectric –
optoelectronic motion sensors – optical presence sensor – Pressure Gradient sensors Velocity
andacceleration sensors: Accelerometer characteristics – capacitative accelerometers –
piezoelectric accelerometers – piezoresistive accelerometers – thermal accelerometers –
Gyroscopes –piezoelectric cables – gravitational sensors
PART - A
Q.No Questions BT Level Comp
etence 1. 1 Define Doppler frequency
Remembering
BTL1
2. 2 Give the frequency response of an accelerometer.
Understanding
BTL2
3. Classify the several characteristics of an accelerometer.
Applying
BTL3
4. Explain the ways to build a vibrating gyro.
Analyzing
BTL4
5. Explain PIR Sensor.
Evaluating
BTL5
6. Design and Develop Gravitational Sensor diagram.
(JUNE 2015)
Creating
BTL6
7. Define Image Distortion.
Remembering
BTL1
8. Differentiate far-infrared and near-infrared motion
detectors.
Understanding
BTL2
9. How to analyse the efficiency of PIR sensor.
Analyzing
BTL4
10. Generalize sagnac effect.
Creating
BTL6
11. Define pyro-electricity.
Remembering
BTL1
12. Summarize the different types of Motion sensors. (JAN
2016) (JUNE-2015)
Understanding
BTL2
13. Explain Tribo electric effect.
Evaluating
BTL5
14. Define the principle of conservation of angular
momentum.
Remembering
BTL1
15 Discuss the methods for path detection in optical
gyroscopes.
Understanding
BTL2
16 Explain how to find the focal length of a facet lens.
Evaluating
BTL5
17 List out typical properties of a piezoelectric cable. (JAN
2016,Dec-2016)
Remembering
BTL1
18 Classify the different types of motion sensors(Dec-2016) Applying
BTL3
19 Define false positive and false negative detection.
Remembering
BTL1
20 Show how sensor is structured.
Applying
BTL3
UNIT-III-Part-B
1 (i)Describe about operation of Microwave occupancy
detectors in detail.(7) (JAN 2016) (JUNE 2015)
(ii)Describe in detail about optoelectronic motion sensors.
(6)
Remembering
BTL1
2 Briefly describe about the Triboelectric Detectors. (13)
(2014)
Understanding
BTL2
3 (i)Illustrate microwave and capacitive detectors. (7)
(ii) Classify ultrasonic and microwave in detail. (6)
Applying
BTL3
4 (i)Explain thermal accelerometers. (7)
(ii) Explain Piezoresistive accelerometers. (6)
Evaluating
BTL5
5 (i)Describe in detail about the Operating principle of an
electromagnetic velocity sensor. (7)
(ii)Define Piezoelectric cables. (6)
Remembering
BTL1
6 .(i)Briefly describe about –thermal accelerometers. (7)
(ii.)Briefly describe about the Gravitational Sensors in
Detail. (6) (JAN 2016)
Understanding
BTL2
7 Explain in detail about the working principle of capacitive
occupancy detectors. (13) (Dec-2016)
Analyzing
BTL4
8 (i)Describe the working principle about Optoelectronic
Motion Detectors. (JAN 2015) (Dec-2016)
(7)
(ii).Define what is sensor velocity and acceleration. (6)
Remembering
BTL1
9 Illustrate and describe in detail about Pressure Gradient
sensors. (13) Applying
BTL3
10 (i)Describe about PIR Motion Detectors. (7)
(ii)Define Triboelectric motion sensors. (6) Remembering
BTL1
11 (i)State and Explain Rotor Gyroscopes in detail. (7)
(ii)State and Explain Optical Gyroscopes in detail. (6) Analyzing
BTL4
12 (i)Develop notes on velocity in detail. (7)
(ii)Develop notes on acceleration in detail. (6) Creating
BTL6
13 (i)Describe in detail about capacitive, piezoelectric and
thermalAccelerometer. (7)
(ii)Define capacitive Detectors. (6)
Understanding
BTL2
14 Explain Piezoelectric cables and Gravitational Sensors.
(13)
Analyzing
BTL4
UNIT –III (PART-C) (15- Marks)
Q.NO Question Competence Level
1. Discuss the various applications where occupancy
detectors are employed.
Understanding
BTL2
2. Examine a case study on applications on Microwave
motion detectors.
Remembering
BTL1
3. Analyse how sensors are structured in opto electronic
motion detectors. (Dec-2016)
Analyzing
BTL4
4. Explain the applications of Gravitational sensors.
Evaluating
BTL5
UNIT IV - LIGHT AND RADIATION DETECTORS
Light Detectors: Photo diodes – photo transistor – photo resistor – cooled detectors – CCD and
CMOS image sensors – thermal detectors – optical design – gas flame detectors
Radiation Detectors: scintillating detectors – ionization detectors – cloud and bubble chambers
PART - A
Q.No Questions Competence BT Level
1 Define the types and characteristics of Light Detectors.
(JUNE 2015) (JAN 2015) (Dec-2016)
Remembering
BTL1
2 Give the specifications of Thermopile.
Understanding
BTL2
3 Examine how photoelectric effect is described in a
semiconductor.
Applying
BTL3
4 Explain the properties of ionization detector.
Analysing
BTL4
5 Assess the components of noncontact temperature sensor. Evaluating
BTL5
6 Prepare the applications of cooled detectors.
Creating
BTL6
7 Define NEP.
Remembering
BTL1
8 Give operation of Bubble Chamber.
Understanding
BTL2
9 Analyse the properties of radiation detector. (JAN 2016)
(Dec-2016)
Analysing
BTL4
10 Generalize the factors that are critical in designing the
optical components for an optical sensor.
Creating
BTL6
11 List the characteristics of photo detectors. (JAN 2016)
Remembering
BTL1
12 Give operation of Cloud Chamber. Understanding
BTL2
13 Point out the steps for fabrication of Cds cells.
Analyzing
BTL4
14 Define the steps in Bolometer.
Remembering
BTL1
15 Discuss the working principle of Gas Flame detector.
Understanding
BTL2
16 Explain the operating modes of Photodiode.
Evaluating
BTL5
17 Define Golay cells.
Remembering
BTL1
18 Illustrate CCD and CMOS Image sensors. (JUNE 2014)
Applying
BTL3
19 Define Radioactivity.
Remembering
BTL1
20 Classify the properties of Scintillation material.
Applying
BTL3
Unit-IV PART-B
1 (i)Describe the working principle of photodiode. (7) (JUNE
2015)
(ii)Define CMOS sensors. (6)
Remembering
BTL1
2 (i)Describe Ionization detector in detail. (7)
(ii)Discuss about radiation and light detectors. (6)
Understanding
BTL2
3 Illustrate and explain the thermal detectors and gas flame
detectors. (13)
Applying
BTL3
4 Explain briefly about the Scintillating Detectors. (13) (JUNE
2014)
Evaluating
BTL5
5 (i)Describe about operation of Gas Flame detectors in detail.
(7)
(ii)Describe about light detectors. (6)
Remembering
BTL1
6 (i)Describe Cloud and bubble chamber. (7)
(ii)Describe briefly about optical design and gas flame
detectors (6) (Dec-2016)
Understanding
BTL2
7 Explain the operating principle of Thermal Detectors and its
Types. (13)
Analyzing
BTL4
8 (i)Describe about operation of Bubble Chambers. (7) (JAN
2016)
(ii)Define about photo transistor and photo resistor. (6)
Remembering
BTL1
9 Illustrate and explain the working principle of
phototransistor. (13)
Applying
BTL3
10 (i)Describe in detail about thermal detector. (7)
(ii)Define about Cooled detectors. (6)
Remembering
BTL1
11 (i)Explain the working principle of CCD sensors. (7)
(ii)Explain about scintillating detectors. (6)
Analyzing
BTL4
12 Develop the working principle of photo resistor. (13) (Dec-
2016)
Creating
BTL6
13 (i)Differentiate CMOS sensors from CCD. (7) (JAN 2016)
(JUNE 2015)
(ii)Differentiate between Photo diode and photo resistor. (6)
Understanding
BTL2
14 (i)Explain in detail about the working principle of all
Ionization detectors. (7) (JUNE 2014)
(ii)Explain about light detectors and Ionization detectors. (6)
Analyzing
BTL4
UNIT-IV-PART-C
Q.No Questions Competence BT
Level
1 Analyse the analogy for Image Sensors.
Analyzing
BTL4
2 Assess a case study on Photo detectors.
Evaluating
BTL5
3 Discuss the applications of Image sensors.
Understanding
BTL2
4 Describe various radiation detectors applications in detail.
(JAN 2015)
Remembering
BTL1
UNIT V - V TEMPERATURE AND CHEMICAL SENSORS
Temperature Sensors: coupling with objects – temperature reference points – thermo resistive
sensors – thermo electric contact sensors – semiconductor sensors – acoustic sensors –
piezoelectric sensors Chemical sensors: characteristics – classes of chemical sensors –
biochemical sensors – multisensory arrays – electronic noses and tongues
PART – A
Q.No Questions BT Level Competence
1 Define Thermistors. (JUNE 2014)
Remember
ing
BTL1
2 Give some advantages of thermos resistive sensors.
Understan
ding
BTL2
3 Illustrate and draw the Cross-section diagram e-tongues.
Applying
BTL3
4 Point out some temperature reference points.
Analyzing
BTL4
5 Explain how chemical sensors are classified. (JAN
2016)(JAN 2015) (Dec-2016)
Evaluating
BTL5
6 Design and draw the diagram of the multisensory array.
Creating
BTL6
7 List three basic characteristics for thermistor applications. Remember
ing
BTL1
8 Discuss Fraden model. Understan
ding
BTL2
9 Differentiate equilibrium and predictive methods in
Temperature sensor. Analyzing
BTL4
10 Develop Acoustic sensor with an example. (JUNE 2015)
Creating
BTL6
11 List some applications of PTC thermistors. Remember
ing
BTL1
12 Discuss Steinhart–Hart Model.
Understan
ding
BTL2
13
Analyse the components of contact temperature sensors.
(JAN 2016) (Dec-2016)
Analyzing
BTL4
14 List some applications of chemical sensors. Remember
ing
BTL1
15 Discuss the thermoelectric laws. Understan
ding
BTL2
16 Explain Bio Chemical Sensor.
Evaluating
BTL5
17 Define Piezoelectric Effect.
Remember
ing
BTL1
18 Illustrate and draw the Cross-section diagram of the
parallel-plate capacitor.
Applying
BTL3
19 List several characteristics of chemical sensors. (JUNE
2014)
Remember
ing
BTL1
20 Illustrate and draw the Cross-section diagram e-noses.
Applying
BTL3
UNIT-V(PART-B)
1 (i)Describe about the direct chemical sensors and
its Types. (7) (JAN2016)
(ii)Describe about temperature reference point. (6)
Remembering
BTL1
2 (i)Briefly describe about the Acoustic Sensors in
detail. (7)(JAN 2016)
(ii)Summarize about chemical sensors. (6)
Understanding
BTL2
3 Illustrate and explain multi sensor arrays. (13)
Applying
BTL3
4 (i)Explain about the Semiconductor Sensors in
Detail. (7) (JAN 2016) (Dec-2016)
(ii.)Explain the about temperature reference points.
(6)
Evaluating
BTL5
5 (i.)Describe in detail about various Temperature Remembering BTL1
sensors. (7)
(ii).Describe about thermo resistive sensors. (6)
6 (i).Discuss in detail about e-noses. (7) (JAN 2015)
(ii).Describe about semiconductor sensors and
acoustic sensors. (6)
Understanding
BTL2
7 Differentiate between Thermo resistive Sensors
and Thermoelectric Contact Sensors. (13) (JUNE
2015) (JAN 2015) (JUNE 2014)
Analyzing
BTL4
8 (i)Describe about the Multisensor Arrays in Detail.
(7) (JAN 2015)
(ii).Define about multi sensor arrays. (6)
Remembering
BTL1
9 Illustrate and explain characteristics of Chemical
Sensors. (13)
Applying
BTL3
10 (i)Describe about e-tongues in detail. (7) (JAN
2015)
(ii)What are the classes of chemical sensors? (6)
Remembering
BTL1
11 (i)Explain how Biochemical Sensors works in
Detail. (7) (Dec-2016)
(ii).Explain how thermo electric sensors work. (6)
Analyzing
BTL4
12 Develop Thermo resistive sensor and thermo
electric contact sensor.
(16)
Creating
BTL6
13 (i)Briefly describe the complex chemical sensors
and its Types. (7) (JAN 2016) (JUNE 2015)
(ii.)Summarize about electronic noses and tongues.
(6)
Understanding
BTL2
14 (i.)Explain Classes of chemical sensor. (7)
(ii.)Explain in depth about temperature sensors. (6) Analyzing
BTL4
UNIT –V (PART-C) (15- Marks)
1 Analyse the semiconductors Sensors.
Analyzing
BTL4
2 Assess a case study about the electronic nose help in
Chemical sensors. (Dec-2016)
Evaluating
BTL5
3 Explain the applications of Temperature sensors.
(Dec-2016)
Evaluating
BTL5
4 Describe various applications in detail about
acoustic sensor.
Remembering
BTL1
